CN201656530U - Fast response circuit with adjustable charging current - Google Patents
Fast response circuit with adjustable charging current Download PDFInfo
- Publication number
- CN201656530U CN201656530U CN2009202125966U CN200920212596U CN201656530U CN 201656530 U CN201656530 U CN 201656530U CN 2009202125966 U CN2009202125966 U CN 2009202125966U CN 200920212596 U CN200920212596 U CN 200920212596U CN 201656530 U CN201656530 U CN 201656530U
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- CN
- China
- Prior art keywords
- negative terminal
- filter capacitor
- fast response
- divider resistance
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a fast response circuit with adjustable high-power charger output current, including a charging circuit composed of a flow divider (8), a battery (9), a filter capacitor (10), a filter capacitor (11), a filter inductor (12), a rectifier (13), a transformer (14), and a switch tube (15), characterized in that: the charging circuit is connected with a fast response circuit with adjustable current. The utility model has the advantage that the circuit can fast respond to the analog current control signal, can form a variety of current waveforms, can also reduce power consumption of the charger, and can improve the charge acceptance of the battery.
Description
Technical field
The utility model relates to the adjustable fast response circuit of a kind of high-power charger output current, can form quick response current impulse waveform.
Background technology
Present high-power charger output generally is to adopt constant current pressure limiting charging, can't adjust charging current, in order to improve the battery charge ability to accept, need to use a kind of current impulse charging modes, present constant current pressure limiting charger can't be finished the current impulse charging, therefore demand inventing the adjustable fast response circuit of a kind of high-power charger output current urgently, can form quick response current impulse waveform.
Summary of the invention:
Can not form current impulse in order to solve existing charger output, the utility model provides a kind of charging current adjustable fast response circuit, this circuit has not only solved the quick response of current impulse, and has improved the charge acceptance of battery, has reduced the loss of power consumption.The adjustable fast response circuit of the utility model design charging current, comprise shunt (8), battery pack (9), filter capacitor (10), filter capacitor (11), filter inductance (12), rectifying tube (13), transformer (14), the charging circuit that switching tube (15) is formed, the input termination external power supply of its transformer (14), the anode of the positive termination rectifying tube (13) of the output of transformer (14), the negative terminal of rectifying tube (13) connects an end of filter inductance (12), the other end of filter inductance (12) also connects filter capacitor (10), the anode of filter capacitor (11) and battery pack (9), the negative terminal of the output of transformer (14) connects the negative terminal of filter capacitor (11), the negative terminal of ripple electric capacity (11) also connects an end of shunt (8), the other end of shunt (8) also connects battery pack (9), the negative terminal and the ground wire of filter capacitor (10) is characterized in that: charging circuit is connected with the adjustable fast response circuit of electric current.It is characterized in that: PWM controller (1), isolating diode (2), feedback resistance (3), feedback capacity (4), comparison amplifier (5), divider resistance (6), divider resistance (7) is formed the adjustable fast response circuit of electric current, signal input IN end links to each other with divider resistance (6) one ends, one end of divider resistance (6) other end and divider resistance (7), comparison amplifier (5) negative terminal links to each other with feedback capacity (4) one ends, the other end of divider resistance (7) links to each other with the shunt (8) of charging circuit, the other end of feedback capacity (4) links to each other with an end of feedback resistance (3), the other end of feedback resistance (3) links to each other with the anode of comparison amplifier (5) output and isolating diode (2), and the negative terminal of isolating diode (2) is connected on the PWM controller (1).。The utility model has the advantages that this circuit response simulation current controling signal fast, can form multiple current waveform, can also reduce the power consumption of charger, improved the battery charge ability to accept.
Description of drawings:
Accompanying drawing is a circuit theory schematic diagram of the present utility model,
Below in conjunction with drawings and Examples the utility model is made detailed operation instruction.
Embodiment:
Comprise shunt (8) among the figure, battery pack (9), filter capacitor (10), filter capacitor (11), filter inductance (12), rectifying tube (13), transformer (14), the charging circuit that switching tube (15) is formed, the input termination external power supply of its transformer (14), the anode of the positive termination rectifying tube (13) of the output of transformer (14), the negative terminal of rectifying tube (13) connects an end of filter inductance (12), the other end of filter inductance (12) also connects filter capacitor (10), the anode of filter capacitor (11) and battery pack (9), the negative terminal of the output of transformer (14) connects the negative terminal of filter capacitor (11), the negative terminal of ripple electric capacity (11) also connects an end of shunt (8), the other end of shunt (8) also connects battery pack (9), the negative terminal and the ground wire of filter capacitor (10) is characterized in that: charging circuit is connected with the adjustable fast response circuit of electric current.It is characterized in that: PWM controller 1, isolating diode 2, feedback resistance 3, feedback capacity 4, comparison amplifier 5, divider resistance 6, divider resistance 7 is formed the adjustable fast response circuit of electric current, signal input IN end links to each other with divider resistance 6 one ends, one end of divider resistance 6 other ends and divider resistance 7, comparison amplifier 5 negative terminals link to each other with feedback capacity 4 one ends, and the other end of divider resistance 7 links to each other with the shunt of charging circuit 8, and the other end of feedback capacity 4 links to each other with an end of feedback resistance 3, the other end of feedback resistance 3 links to each other with the anode of comparison amplifier 5 outputs and isolating diode 2, and the negative terminal of isolating diode 2 is connected on the PWM controller 1.
The fast response circuit that electric current of the present utility model is adjustable is made up of with an isolating diode two current voltage distribution resistance, single-ended comparators, feedback capacity, resistance.When analog signal is big, produce the output of big electric current, when analog signal hour produces little electric current output.
During work, when control signal IN increases, divider resistance 6, divider resistance 7 minutes voltage V1 also along with increase, the V1 voltage increase just negative feedback terminal voltage of comparison amplifier 5 also increases, when comparison amplifier 5 negative terminals are higher than the positive feedback end, at this moment comparison amplifier 5 output V2 ends are electronegative potential, isolating diode 2 not conductings, PWM controller 1 can't accept the adjustment signal, output current also increases thereupon, and output current is increased to and flows to negative terminal once Io regularly from the anode of battery pack 9 and charge for battery pack 9.When control signal reduces, divider resistance 6, divider resistance 7 minutes voltage V1 also along with reducing, V1 voltage reduces just, and comparison amplifier 5 negative feedback terminal voltages also reduce, when comparison amplifier 5 negative terminals are lower than the positive feedback end, at this moment comparison amplifier 5 output V2 ends are high potential, make isolating diode 2 forward conductions, PWM controller 1 receives the adjustment signal, and output current Io also reduces thereupon.
Claims (2)
1. the adjustable fast response circuit of charging current, comprise shunt (8), battery pack (9), filter capacitor (10), filter capacitor (11), filter inductance (12), rectifying tube (13), transformer (14), the charging circuit that switching tube (15) is formed, the input termination external power supply of its transformer (14), the anode of the positive termination rectifying tube (13) of the output of transformer (14), the negative terminal of rectifying tube (13) connects an end of filter inductance (12), the other end of filter inductance (12) also connects filter capacitor (10), the anode of filter capacitor (11) and battery pack (9), the negative terminal of the output of transformer (14) connects the negative terminal of filter capacitor (11), the negative terminal of ripple electric capacity (11) also connects an end of shunt (8), the other end of shunt (8) also connects battery pack (9), the negative terminal and the ground wire of filter capacitor (10) is characterized in that: charging circuit is connected with the adjustable fast response circuit of electric current.
2. by the adjustable fast response circuit of the described charging current of claim 1, it is characterized in that: PWM controller (1), isolating diode (2), feedback resistance (3), feedback capacity (4), comparison amplifier (5), divider resistance (6), divider resistance (7) is formed the adjustable fast response circuit of electric current, signal input IN end links to each other with divider resistance (6) one ends, one end of divider resistance (6) other end and divider resistance (7), comparison amplifier (5) negative terminal links to each other with feedback capacity (4) one ends, the other end of divider resistance (7) links to each other with the shunt (8) of charging circuit, the other end of feedback capacity (4) links to each other with an end of feedback resistance (3), the other end of feedback resistance (3) links to each other with the anode of comparison amplifier (5) output and isolating diode (2), and the negative terminal of isolating diode (2) is connected on the PWM controller (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202125966U CN201656530U (en) | 2009-12-04 | 2009-12-04 | Fast response circuit with adjustable charging current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202125966U CN201656530U (en) | 2009-12-04 | 2009-12-04 | Fast response circuit with adjustable charging current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201656530U true CN201656530U (en) | 2010-11-24 |
Family
ID=43121768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202125966U Expired - Fee Related CN201656530U (en) | 2009-12-04 | 2009-12-04 | Fast response circuit with adjustable charging current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201656530U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106961141A (en) * | 2017-05-04 | 2017-07-18 | 北京希格玛和芯微电子技术有限公司 | Wireless charging receiver and terminal device |
| CN109991492A (en) * | 2019-03-25 | 2019-07-09 | 飞依诺科技(苏州)有限公司 | Simulated battery circuit |
-
2009
- 2009-12-04 CN CN2009202125966U patent/CN201656530U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106961141A (en) * | 2017-05-04 | 2017-07-18 | 北京希格玛和芯微电子技术有限公司 | Wireless charging receiver and terminal device |
| CN109991492A (en) * | 2019-03-25 | 2019-07-09 | 飞依诺科技(苏州)有限公司 | Simulated battery circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20111204 |